Handle-bar extension.



No. s7|,647. Patented Apr. 9, 19m.

A. H. mm.

HANDLE BAR EXTENSION.

(Application filed Kay 98, 1900.)

(No Model.)

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ALBERT H. FIELD, OF PROVIDENCE, RHODE ISLAND.

HANDLE-BAR EXTENSION.

SPECIFICATION forming part of Letters Patent No. 671,647. dated. April9, 1901.

Application filed May 22, 1900.

To all whom it may concern.-

Be it known that LALBERT H. FIELD, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented a new and useful Handle-Bar Extension, of whichthe following is a specification.

My invention relates to handle-bars forbicycles, and more particularlyto an extension for the same; and it has for its object to produce adevice of this kind which may be adjustably secured in the usual handlebar socket and is provided with means for securing the handle-bar to theouter end thereof in such position that the handle-bar can be adjustedin any position which the rider may wish to assume.

With this object in view my invention consists in the improvedconstruction and arrangement of an extension for handle-bars, as will behereinafter more fully set forth.

In the accompanying drawings, in which the same reference-numeralsindicate corresponding parts in each of the views in which they occur,Figure 1 represents the head of a bicycle with my extension securedthereto and the ordinary curved handle secured to the extension, thehandle being shown in one position in full lines and in other positionsin dotted lines. Fig. 2 is a perspective view of one form of myextension. Fig. 3 is a similar View of a slightly-different form,showing the means for securing it in position; and Figs. 4 and 5 areperspective views of another form of the extension.

Referring more particularly to the drawings, 1 indicates the head of anordinary bicycle, which may be of any usual construction and providedwith means for securing the handle-bar thereto. The head is providedwith the usual handle-bar stem 2, with a ring or collar 3 at its upperend.

In the drawings I have shown the ring 3 secured in position by means ofa clamp 3, which is adapted to be secured around the stem by means of abolt 2; but it is evident that the ring could be secured in any otherway without affecting my invention.

My improvement consists of a bar 4:, one end of which is provided with ahead 5, adapted to be secured within the ring or collar, and the otherend is provided with an adjustable Serial No. 17,524. (No model.)

opening 6, preferably formed by slotting one side, as shown at 7, andpassing a bolt 8 through the perforated lips 9 upon opposite The barmaybe of any suit sides of the slot. able size and area in cross-section,either angular or curved. The head 5 is preferably secured to the bar bymeans of a neck 10, which is curved to such an extent as to cause thecenter of the head to lie substantially in a line with the center of thebar. If desired, the head may be made expansible by recessing one end,as shown by dotted lines 11 in Fig. 4, and slotting the Walls, as shownat 12.. A tapering plug 13 is located within the recessed portion of thehead and is adapted to be drawn thereinto, so as to expand the slottedwalls, by means of a bolt 14.

Instead of forming the bar of a single straight piece of material, asabove described, it maybe formed from two pieces 15 and 16, as shown inFigs. 4 and 5. In this construction one end of the bar is provided withthe slotted opening in the same manner as heretofore described for thereception of the handle-bar; but the opposite end of one of the pieces15 is provided with a recessed and slotted head 17, into which a conicalplug or head 18 is adapted to be drawn by means of the bolt 19. Thepiece 16 is pivotally secured to the intermediate portion of the piece15 by means of a screw or pivot 20, the piece 15 being recessed orhalved, as shown at 21, for the reception of the pivotal end of thepiece 16. The pieces 15 and 16 are preferably fiat and are each given aquarter-turn, as shown at 22, to cause the axes of the heads 17 and 18to stand at right angles when in their closed position to the pivot 20.

By providing a bicycle with my improvement as above described it'isevident that it can be readily secured to the handle-bar stem with theends of the handles projecting above or below the point of attachment bysimply inserting the head 5 into the collar 3 from one side or theother. After the extension has been secured to the handle-bar stem itcan be moved into any desired position, as shown in Fig. l, with itspoint of attachment as a center. The handle-bar is adjustably secured atthe outer end of the extension, so that the inclination of the handlesmay be varied to suit the adjustment of the extension and theconvenience of the rider. The same result can be secured by the form ofextension shown in Figs. 4 and 5, the only difference being in thelatter form being separable and insertible into the collar of thehandle-bar stem from opposite sides, where they are rigidly secured bymeans of a bolt therein.

If at any time it should be desired to dispense with the extension, itcan be quickly removed from the stem, and the handles can be removedfrom its outer end and secured to the stem in the usual manner. Whenconstructed and combined in this manner, it is evident that thehandle-bars can be quickly secured in any position to accommodate theposition which the rider may desire to assume. The extension can bemanufactured very cheaply and of sufficient strength to answer allpurposes without materially increasing the Weight of the machine.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. As a new article of manufacture, ahandle-bar extension for bicyclesconsisting of a bar, one end of which is bent laterally and providedwith a head at right angles to the bar, the center of the head beingsubstantially in a line with the center of the bar, and the other end isprovided with an expansible opening at right angles to the bar andparallel with the head, the head being provided with means for adjustably and movably securing it to the fork of a bicycle and the wallsof the opening being provided with means for varying the size of theopening for the reception of the handles, substantially as described.

2. In a handle-bar extension for bicycles, the combination, with a bar,one end of which is provided with a recessed and slotted head at rightangles to the main portion and the other end is provided with a slottedopening, of an expanding-plug in the head, a bolt through the head andthe plug, and a bolt through the slotted portion of the opening,substantially as described.

ALBERT H. FIELD.

Witnesses:

CHAS. E. BROOK, CLARENCE SHAW.

